2110101220 has 24 divisors (see below), whose sum is σ = 4432491000. Its totient is φ = 843796992.

The previous prime is 2110101199. The next prime is 2110101247. The reversal of 2110101220 is 221010112.

It can be written as a sum of positive squares in 4 ways, for example, as 12278016 + 2097823204 = 3504^2 + 45802^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 2110101197 and 2110101206.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66556 + ... + 93004.

It is an arithmetic number, because the mean of its divisors is an integer number (184687125).

Almost surely, 2^2110101220 is an apocalyptic number.

2110101220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2110101220 is an abundant number, since it is smaller than the sum of its proper divisors (2322389780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2110101220 is a wasteful number, since it uses less digits than its factorization.

2110101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30447 (or 30445 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 2110101220 is about 45935.8380787811. The cubic root of 2110101220 is about 1282.6291216368.

Adding to 2110101220 its reverse (221010112), we get a palindrome (2331111332).

The spelling of 2110101220 in words is "two billion, one hundred ten million, one hundred one thousand, two hundred twenty".